Your best bet would be the Express by Holiday Inn Cambridge. It is an expensive 2-star hotel in the east area of town with free wifi and free parking.
If there are not any hotels that do not include free parking then that place will do.
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hotel-area hotel-name hotel-parking hotel-pricerange
hotel-area hotel-name hotel-parking hotel-pricerange
hotel-area hotel-name hotel-parking hotel-pricerange